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Finding the Fourth Proportional to 9,953.99, 14,929.98 and 3,380.07

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Solution

The fourth proportional to 9,953.99, 14,929.98 and 3,380.07 is: 5,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,953.99 : 14,929.98 = 3,380.07 : x
  2. Step 2: Convert to fraction form
    9,953.99/14,929.98 = 3,380.07/x
  3. Step 3: Cross multiply
    9,953.99x = 14,929.98 × 3,380.07
  4. Step 4: Simplify right side
    9,953.99x = 50,464,377.50
  5. Step 5: Solve for x
    x = 50,464,377.50/9,953.99
  6. Step 6: Final answer
    x = 5,069.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.